конец занятия №75

app/db/db.json

-[{"title":"Новый продукт2","price":100,"description":"Product description"},{"title":"Новый продукт3","price":100,"description":"Product description"}]
\ No newline at end of file
+[{"title":"Новый продукт2","price":100,"description":"Product description","_id":"po07wU69_bGgD9lJaGBoB"},{"title":"Новый продукт3","price":100,"description":"Product description","_id":"po07wU69_bGgD9lJaGBoA"},{"title":"Название продукта3","price":100,"description":"Описание продукта3","_id":"po07wU69_bGgD9lJaGBoR"}]
\ No newline at end of file

app/db/fileDb.js

 const fs = require('fs');
 
-const fileName = './db/db.json';
+const fileName = './app/db/db.json';
 let data = [];
 
 module.exports = {
@@ -9,6 +9,7 @@ module.exports = {
            const fileContents = fs.readFileSync(fileName, 'utf-8');
            data = JSON.parse(fileContents);
        }catch (e) {
+           console.error(e);
            data = []
        }
     },

app/products.js

 const express = require('express');
 const router = express.Router();
 const db = require('./db/fileDb');
+const {nanoid} = require('nanoid')
 
 db.init();
 
 router.get('/', (req, res) => {
-    res.send('List of products will be here')
+    const products = db.getItems();
+    res.send(products)
 });
 
 router.get('/:id', (req, res) => {
@@ -14,8 +16,12 @@ router.get('/:id', (req, res) => {
 
 router.post('/', (req, res) => {
     console.log('Create product', req.body);
-    db.addItem(req.body);
-    res.send('Create product will be here')
+    const newProduct = {
+        ...req.body,
+        _id: nanoid()
+    };
+    db.addItem(newProduct);
+    res.send(newProduct)
 });
 
 module.exports = router;
\ No newline at end of file

package-lock.json

@@ -330,6 +330,15 @@
       "resolved": "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz",
       "integrity": "sha1-4wOogrNCzD7oylE6eZmXNNqzriw="
     },
+    "cors": {
+      "version": "2.8.5",
+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
+      "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+      "requires": {
+        "object-assign": "^4",
+        "vary": "^1"
+      }
+    },
     "crypto-random-string": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/crypto-random-string/-/crypto-random-string-2.0.0.tgz",
@@ -855,6 +864,11 @@
       "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
       "dev": true
     },
+    "nanoid": {
+      "version": "3.1.18",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.1.18.tgz",
+      "integrity": "sha512-rndlDjbbHbcV3xi+R2fpJ+PbGMdfBxz5v1fATIQFq0DP64FsicQdwnKLy47K4kZHdRpmQXtz24eGsxQqamzYTA=="
+    },
     "negotiator": {
       "version": "0.6.2",
       "resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
@@ -899,6 +913,11 @@
       "integrity": "sha512-2s47yzUxdexf1OhyRi4Em83iQk0aPvwTddtFz4hnSSw9dCEsLEGf6SwIO8ss/19S9iBb5sJaOuTvTGDeZI00BQ==",
       "dev": true
     },
+    "object-assign": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+      "integrity": "sha1-IQmtx5ZYh8/AXLvUQsrIv7s2CGM="
+    },
     "on-finished": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.3.0.tgz",

package.json

@@ -10,7 +10,9 @@
   "author": "",
   "license": "ISC",
   "dependencies": {
-    "express": "^4.17.1"
+    "cors": "^2.8.5",
+    "express": "^4.17.1",
+    "nanoid": "^3.1.18"
   },
   "devDependencies": {
     "nodemon": "^2.0.6"

server.js

 const express = require('express');
 const products = require('./app/products');
+const cors = require('cors')
 const app = express();
 
 const port = 8000;
 
+const corsOptions = {
+    origin: 'http://localhost:3000',
+    optionsSuccessStatus: 200 // some legacy browsers (IE11, various SmartTVs) choke on 204
+}
+
+app.use(cors(corsOptions))
 app.use(express.json())
 app.use('/products', products);